Machine for operating on insoles.



G. W. HAMMON- MACHINE FOR OPERATING 0N INSOLES. APPucATI oN man NOV. 20. I9Il.

. 1,161,769. Patented Nov. 23; 1915.

3 SHEETS-SHEET I.

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G. W. HAMMON.

MACHINE FOR OPERATING 0N INSOLES.

APPLICATION FILED NOV- 20. 1911.

1,161,769. Patented Nov. 23, 1915.

3 SHEETSSHEET 2- G. W. HAMMON.

MACHINE FOR OPERATING 0N INSOLES.

APPLICATION FILED NOV- 20. 19!].

/ 1,161,769, Patented Nov. 23, 1915.

3 SHEETS-SHEET 3- %fizeaaaa Zizwmr UNTTE STATES PATENT OFFICE. A

GEORGE W. HAMMON, OF MARLBORO, MASSACHUSETTS. ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION NEW JERSEY.

MACHINE FOR OPERATING ON INSOLES.

1 ,ioigzcaj To all whom it may concern:

Be it known that I, GEORGE W. HAMMON, a. citizen of the United States, residing at Marlboro, in the county of LIiddlesex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating 011 Insoles; and I do hereby declare thefollowing to be a .full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for operating upon insoles, andmore particularly to machines for forming what are known commercially as Economy Insoles.

In making a double lipped insole of the Economy type in which inner and outer lips are cut, turned up and secured together to form a compound lip, difiiculty has been encountered in turning up the inner or channel lip so that it can readily be secured to the outer lip, particularly about curved portions of the insole. The inner lip of an insole is formed by cutting obliquely into the substance of the insole around and toward the sole edge at a distance from the margin forming the usual channel. The difficulty in turning up the inner lipis due principally to the fact that the length of the edge or top of the lip is less than the length "of its base. On this account when one portion of the lip is turned up, tension is put upon the outer portion of the lip which tends to hold other portions of the lip down adjacent the body of the sole. The difference in length between the edge and base of the lip for any given section is greater at sharply curved portions of the channel, and this difliculty is, therefore, correspondingly greater at such points than along comparatively straight portions of the channel. In order to enable the inner lip to be readily upturned, it is desirable to relieve the tension put upon the outer portion of the lip when it is turned up.

One object of the resent invention is to produce a machine or operating upon insoles by which the inner lip may be treated so as to enable it to be readily turned up in the desired position with relation to the body of the insole.

With the above object in view, a feature of the invention contemplates the provision,

Specification of Letters Patent.

Patented Nov. 23', 1915.

Application filed November 20, 1911. Serial No. 661,256.

in a machine of the class described having means to support the insole, of mechanism for cutting a series of slashes in the inner lip as the insole is fed through the machine.

Another object of the invention is to produce an improved machine for forming one or more lips upon an insole and for turning and setting one of the lips.

Other features of the invention consist of certain constructions, arrangements and combinations of parts, the advantages of which will be obvious to those skilled in the art from the following description.

In the drawings illustrating the invention in the best form at present known to the inventor, Figure 1 is a front elevation of a machine embodying the invention; Fig. 2 is a side elevation of the machine; Fig. 3 is an enlarged perspective view of the channeling, edge splitting and lip slitting knives operating on the toe portion of an insole; and Figs. 4, 5 and 6 are a plan, a side elevation, and a front elevation of the inner lip slitting tool detached from its carrier.

The illustrated embodiment of the invention comprises a work support, a channeling knife for cutting obliquely into the substance of the insole toward the sole edge to form a channel and an inner lip, and an edge splitting knife for cutting inwardly from the edge of the insole in a plane parallel with the faces of the sole to form a feather and an outer lip. In the drawings the work support is indicated at 1, the channeling knife at 2, and the edge splitting tool at 3.

4 designates the four-motion feed device which engages the upper surface of the insole, and imparts a step-by-step feeding movement to the same, 5 the edge gage for determining the distance of the channel from the edge of the sole, and 6 the presser foot to limit the depth to which the knives enter the work. The parts above briefly referred to are constructed, arranged and operated substantially as shown and described in Letters Patent of the United States to William C. Meyer, No. 984,7 7 3, dated February 21, 1911, to which reference may be had for a full and complete description. 1 I

-The mechanism for cutting a series of slashes in the inner lip comprises an inner lip slitting tool, indicated at 7, which consists of a bar extending downwardly and forwardly to a point adjacent the channeling and edge splitting knives. This tool is provided with a vertical knife 8 formed thereon for slitting the outer or free, marginal portion of the inner lip, and a blunt face 9 for engaging and lifting the inner edge of the lip, the knife also having a sharp curved shoulder 10 where it joins the blunt face 9 of the tool. The tool 7 is vibrated in a plane substantially perpendicular to the inner lip, and during the movement of the tool toward the lip the blunt face 9 of the tool lifts the inner edge of the lip. As the tool continues in its movement toward the margin of the sole the lip slides upwardly along the blunt face 9 until the outer, free edge portion of the lip is brought into engagement first with the sharp curved shoulder 10 of the knife, and thereafter with the vertical portion of the knife edge. The tension put upon the outer portion of the lip during the movement of t e tool, tending to hold the lip down adjacent the body of the insole and therefore resisting the movement of the tool, is suflicient at sharply curved portions of the sole to cause the knife to out completely through the outer p0rtion of the lip, the cutting operation being performed chiefly by the edged shoulder 10. At comparatively straight portions of the channel, since here there is substantially no tension put upon the outer portion of the lip during the lifting of the lip, the lip will offer slight resistance to the movement of the knife, and will therefore be left substantially unslashed. This is particularly true of a tempered insole.

In case the stock is suiiiciently hard to offer considerable resistance to the movements of the lip slitting knife, the lip will be slashed at regular intervals throughout its length. In the construction illustrated the slitting or slashing tool 7 is removably secured by a screw 11 to the lower end of the slitting tool lever 12 which is pivoted at its upper end on a stud 13 fixed in the upper end of the shank 14 of the knife carrier 15. Owing to this arrangement the slitting knife always occupies the same vertical position with respect to the channeling and edge splitting knives notwithstanding their rlsing and falling movements in response to variations in the thickness of the work, and thus the slitting knife is always in proper position to engage and opcrate on the innerlip. The lip slitting tool is vibrated continuously, during the operation of the machine toward and from the margin of the sole by means of an adjustable link 16 pivotally connected at its extremity 17 with a cam lever 18 and at its other extremity 19 with the slitting knife lever 12. The cam lever is pivoted at 20 on the frame of the machine, and carries at its lower end a cam roll 21 engaging a cam path 22 in a cam 23. At each rotation of the driving shaft 24 the lever 12 is reciprocated and a vibration is imparted to the inner lip slit ting, tool which, in case the machine is operating about a sharply curved portion of the sole, cuts a slit or slash inwardlyfrom the free, marginal ortion of the inner lip. Preferably the slittmg tool is operated once for each feed movement of the machine, but the number of slashes made in any given portion of the flap may readily be varied by varying the shape of the cam path by which the lever 12 is actuated.

It is to be understood that the term inner lip defines a lip formed by cutting a channel about the marginal portion of the insole in a direction from the central portion of the insole toward its margin, and applies to such a lip whether or not the insole is formed with an outer lip in addition thereto.

It is believed that the present applicant is the first in the art to devise a machine by which transverse slashes may be cut in the inner lip of either a single or a double lipped insole, and that he is therefore entitled to claim in broad terms the means by which this novel operation is accomplished.

Although the invention has been illustrated as embodied in a machine for forming and turning the inner and outer lips of a double lipped insole of the Economy type, it is not in its broader aspects limited to such a machine, but certain features thereof may be embodied in other machines for operating upon insoles.

The invention is not in general limited to the details of construction and operation of the illustrated embodiment, but may be embodied in other forms broadly defined in the claims.

What is claimed as new is 1. A machine for operating upon insoles having a lip formed by cutting downwardly and outwardly in the margin of one face of the insole, having, in combination, means for supporting the insole during the operation of the machine, and continuously operating mechanism for cutting a series of slashes in said lip while the insole is thus supported.

2. A machine for. operating upon insoles having a lip formed by cutting downwardly and outwardly in the margin of one face of the insole, having, in combination, means for supporting and feeding the Work, and lip slitting mechanism for cutting a series of transverse slashes or slits in the free, marginal portion of said lip, substantially as described. 1

3. A machine for operating upon insoles having a lip formed by cutting downwardly and outwardly in the margin of one face of the insole, having, in combination, a work support, a reciprocating lip slitting tool,

and means to actuate said tool to cut transverse slashes or slits inwardly from the free, marginal portion of said lip, substantially as described.

4. A machine for operating upon insoles, having, in combination, a channeling knife, and mechanism acting to the rear of the channeling knife in the direction of feed for cutting a series of slashes or slits in the lip formed by said knife, substantially as described.

5. A machine for operating upon insoles, having, in combination, a channeling knife, and a reciprocating lip slitting tool mounted to the rear of the channeling knife in the direction of feed for cutting a series of slashes or slits in the outer portion of the lip formed by said knife, substantially as described.

6. A machine for operating upon insoles, having, in combination, Work supporting means, and lip slitting means mounted -to rise and fall in accordance with variations in the thickness of the work, substantially as described.

7. A machine for operating upon insoles, having, in combination, means for supporting and feeding the work, and a channeling knife and a lip slitting tool mounted to rise and fall in unison in accordance with changes in the thickness of the Work, substantially as described.

8. A machine for operating upon insoles, having, in combination, means for supporting and feeding the work, a yieldingly mounted knife carrier, a channeling knife and an edge splitting knife fixed thereto, a lip slitting knife and supporting means for said knife mounted on said carrier, substantially as described.

9. A machine for operating upon insoles, having, in combination, Work supporting means, and a lip slitting tool comprising a lip slitting knife and means for lifting the lip to bring the same into engagement with said knife, substantially as described.

10. A machine for operating upon insoles, having, in combination, a work support, a reciprocating lip slitting ,tool comprising a lip slitting knife for slitting the free, marginal portion of the lip and a blunt face for lifting the lip to bring the same into engagement with said knife, and means to reciprocate said tool, substantially as described.

11. A machine for operating upon insoles, having, in combination, a work support, a vibratinglip slitting tool comprising a vertical slitting knife, a blunt face below the knife for lifting the lip, and an edged shoulder formed on the knife adjacent said face for initially cutting the lip, and means to vibrate said tool, substantially as described.

12. A machine for operating upon insoles, having a lip formed by cutting downwardly and outwardly in the margin of one face of the insole, having, in combination, a work support, step-by-step work feeding means, a tool for slitting said lip, and means to operate said tool once for each step of the feeding means, substantially as described.

13. A machine for operating upon insoles, having, in combination, means for forming an outer and an inner lip and means for slitting the inner lip during the lip forming operation, substantially as described.

14. A machine for operating upon insoles, having, in combination, channeling and edge splitting knives, means for feeding the sole past said knives to form two parallel lips, a lip slitting knife mounted to the rear of the channeling knife in the direction of feed. and means to reciprocate said knife in a direction transverse to the line of feed to slit the channel lip, substantially as described.

15. A machine for operating upon insoles having a lip formed by cutting downwardly and'outwardly in the margin of one face of the insole, having, in combination, work supporting means, a knife arranged to vibrate in a direction substantially parallel to the plane of the sole face and perpendicular to the free edge of said lip, and means to operate said knife to slit said lip, substantially as described.

16. A machine for operating upon insoles, having, in combination, feeding means, a channeling knife, a vibratory lip slitting tool mounted adjacent the channeling knife, a lip slitting knife carried by said tool, said tool having a blunt face to pick up the lip held up by said channeling knife and bring the same into engagement with said knife,

and means to vibrate said tool, substantially as described.

17. A machine for operating upon insoles.

having, in combination, feeding means. a channeling knife and an edge splitting knife arranged in adjacent positions to form inner and outer parallel lips. and a lip slitting knife mounted to reciprocate in a direction substantially parallel to the sole and perpendicular to the lip toward and from the edge splitting knife, substantially as described.

18. A machine for operating upon insoles having a lip formed by cutting downwardly and outwardly in the margin of one face of the insole, having, -in combination. means for lifting the free, marginal portion of said lip, and mechanism for cutting a series of slashes in said portion of the lip while it is thus held lifted.

GEORGE W. HAMMON. 

